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Finding the Fourth Proportional to 13,402.76, 20,043.74 and 10,241.15

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Solution

The fourth proportional to 13,402.76, 20,043.74 and 10,241.15 is: 15,315.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,402.76 : 20,043.74 = 10,241.15 : x
  2. Step 2: Convert to fraction form
    13,402.76/20,043.74 = 10,241.15/x
  3. Step 3: Cross multiply
    13,402.76x = 20,043.74 × 10,241.15
  4. Step 4: Simplify right side
    13,402.76x = 205,270,796.48
  5. Step 5: Solve for x
    x = 205,270,796.48/13,402.76
  6. Step 6: Final answer
    x = 15,315.57

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.